JPS6322232B2 - - Google Patents
Info
- Publication number
- JPS6322232B2 JPS6322232B2 JP57068855A JP6885582A JPS6322232B2 JP S6322232 B2 JPS6322232 B2 JP S6322232B2 JP 57068855 A JP57068855 A JP 57068855A JP 6885582 A JP6885582 A JP 6885582A JP S6322232 B2 JPS6322232 B2 JP S6322232B2
- Authority
- JP
- Japan
- Prior art keywords
- weight
- parts
- rubber
- asphalt
- petroleum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000000203 mixture Substances 0.000 claims description 39
- 229920001971 elastomer Polymers 0.000 claims description 20
- 239000005060 rubber Substances 0.000 claims description 20
- 239000000654 additive Substances 0.000 claims description 18
- 239000003208 petroleum Substances 0.000 claims description 17
- 230000000996 additive effect Effects 0.000 claims description 14
- 238000003756 stirring Methods 0.000 claims description 8
- 229920001577 copolymer Polymers 0.000 claims description 5
- 125000003118 aryl group Chemical group 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims 1
- 239000010426 asphalt Substances 0.000 description 36
- 229920006244 ethylene-ethyl acrylate Polymers 0.000 description 14
- 239000005042 ethylene-ethyl acrylate Substances 0.000 description 13
- 239000002699 waste material Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 8
- 238000004064 recycling Methods 0.000 description 6
- 239000007787 solid Substances 0.000 description 6
- 241000196324 Embryophyta Species 0.000 description 5
- 229920000126 latex Polymers 0.000 description 5
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 4
- QLZJUIZVJLSNDD-UHFFFAOYSA-N 2-(2-methylidenebutanoyloxy)ethyl 2-methylidenebutanoate Chemical compound CCC(=C)C(=O)OCCOC(=O)C(=C)CC QLZJUIZVJLSNDD-UHFFFAOYSA-N 0.000 description 3
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 description 3
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Natural products CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 3
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 239000010779 crude oil Substances 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- 239000004816 latex Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920001084 poly(chloroprene) Polymers 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- 229920003048 styrene butadiene rubber Polymers 0.000 description 2
- 229920003051 synthetic elastomer Polymers 0.000 description 2
- 239000005061 synthetic rubber Substances 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- JULDKEYYPIYHLQ-UHFFFAOYSA-N 3-hydroxy-2-[[2-[(3-hydroxy-4-oxopyran-2-yl)methyl-methylamino]ethyl-methylamino]methyl]pyran-4-one Chemical group O1C=CC(=O)C(O)=C1CN(C)CCN(C)CC=1OC=CC(=O)C=1O JULDKEYYPIYHLQ-UHFFFAOYSA-N 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- -1 and as a result Substances 0.000 description 1
- 239000010692 aromatic oil Substances 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 229920001195 polyisoprene Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Road Paving Structures (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Description
本発明は、高級舗装、簡易舗装、橋面舗装及び
空港舗装等を対象とする再生アスフアルト混合物
の舗装用再生添加組成物の製造方法に関する。
近年、老化したりまた不要となつた廃材のアス
フアルト混合物は、省資源及び省エネルギーの気
運に伴なつてリサイクリング化が見直されてい
る。
アスフアルト混合物を対象とするリサイクリン
グには、大きく分けて中央プラント方式と路上方
式とがある。
中央プラント方式は、特殊な或いは在来型式の
プラントで再生する方式であつて、ストツクヤー
ドに廃材を集積してから、破砕設備で破砕や熱解
砕によりほぐして分級し、新しい骨材、ストレー
トアスフアルトや再生添加剤等の補足材料を添加
して混合する。
また、路上方式は、現場に於て既舗のアスフア
ルト混合物の一部または全部を切削し、該切削廃
材中に不足している骨材、ストレートアスフアル
トや再生添加剤等の補足材料を加えて混合し、そ
れを敷きならし及び転圧している。
この様にストレートアスフアルトや再生添加剤
等を添加した理由としては、既設舗装廃材である
アスフアルト混合物中のアスフアルトに於て、該
アスフアルト中のマルテン留分(n−ペンタン可
溶の極性留分、芳香族留分及び飽和留分からなる
ものを指す。)が酸化或いは重合されてアスフア
ルテン(n−ペンタン不溶分を指す。)に移行す
ることにより、化学組成的に原ストレートアスフ
アルトと比較して相対的にマルテン留分が不足す
るからであり、従つてこのアスフアルトの物理的
性質としては、原ストレートアスフアルトと比較
して進入度、伸度及び軟化点の上昇が観察され
る。
しかしながら、この様な物性を有する老化した
アスフアルト混合物を再生する為に、マルテン留
分が主体である低粘度の再生添加剤を上記中央プ
ラント方式或いは路上方式に於て添加すると、新
しいアスフアルト混合物と比較して高温時に流動
変形現象が起り易くなると共に低温時に摩耗現象
が起り易くなる。
また、老化したアスフアルト混合物を再生する
為にストレートアスフアルトを添加する場合、原
ストレートアスフアルトの物理的性質に復元させ
る為には多量に添加する必要があり、その結果再
生アスフアルト混合物中のアスフアルトが過剰に
なるのに伴つてフラツシユ現象や流動現象が起り
易くなる欠点がある。
従つて、この様にストレートアスフアルトや再
生添加剤等を添加した再生アスフアルト混合物を
舗装用アスフアルト混合物として使用した場合、
一般のアスフアルト混合物に比べて車両等の交通
の繰り返しを受けると、路面に流動変形現象や摩
耗現象等が起り易い為、平担な路面状態を長時間
維持することが難しくなる。
本発明は、上記した諸欠点を解決する為になさ
れたものであり、その目的は、廃材の老化程度に
かかわらず広い適用範囲に使用できると共に、再
生アスフアルト混合物に耐久性と流動抵抗性をも
たせることができる舗装用再生添加組成物を提供
することにある。
上記した目的を達成する為、本発明は、エチレ
ン・エチルアクリレート共重合物(以下、EEA
と呼ぶ。)100重量部に対してゴムが20〜100重量
部となる比率で両者の合計量が石油系軟化剤100
重量部に対して1〜30重量部とする添加剤とした
ことを特徴とする。
以下、本発明について説明すると、本発明は、
次の石油系軟化剤、EEA及びゴムの3成分から
なる。
1 石油系軟化剤は、原油から常圧蒸留塔により
低沸点留分を分離させ、常圧蒸留塔の底に残る
重質原油を減圧蒸留した留出油であり、更にこ
の留出油は原油の種類、処理工程及び配合によ
りパラフイン系軟化剤、ナフテン系軟化剤及び
芳香族系軟化剤に分類されるが、本発明はこれ
ら全部が使用できる。
この様な石油系軟化剤は、アスフアルト中の
マルテン留分に近い化学組成成分を有してい
る。
2 EEAは、エチルアクリレートを5〜50重量
%含有するもので、かつメルトインデツクスが
0.5〜50のものがよい。尚、EEAに於ては、エ
チルアクリレートの含有量が51重量%以下では
老化したアスフアルトに対する溶解性が劣り、
かつ低温時の性状も劣る。また、エチルアクリ
レート含有量が50重量%以上では、老化したア
スフアルトに対する溶解性は良いが高温時の性
状が劣る等の欠点を有している。
3 ゴムは、天然ゴムまたは各種合成ゴムを使用
するが、1種または2種以上混合して使用す
る。その性状は固形またはラテツクスタイプの
もので、ゴムのムーニー粘度が10〜100程度の
ものがよい結果が得られる。尚、合成ゴムとし
ては、クロロプレンゴム、スチレン、イソプレ
ン共重合体ゴム、ポリイソプレンゴム、ポリブ
タジエンゴム、スチレン・ブタジエン共重合体
ゴム等が用いられる。
本発明の組成物は、次の様にして通常得られ
る。
先ず、EEA100重量部に対してゴムが20〜100
重量部となる比率で両者をそれぞれ用意し、更に
その両者の合計量を石油系軟化剤100重量部に対
して1〜30重量部にしてEEA、ゴム及び石油系
軟化剤をそれぞれ用意する。
そして、温度90−160℃に加熱溶融した所定量
の石油系軟化剤に所定量のゴム例えばゴムラテツ
クスまたは固形ゴムを除々に添加し、撹拌を続け
ながら加熱することにより水分を除去してゴム入
り石油系軟化剤とする。
更に、上記ゴム入り石油系軟化剤を温度120〜
170℃に加熱し、所定量のEEAを加えて溶解する
ことにより本発明の舗装用再生添加組成物とす
る。
この様に得られた本発明を、中央プラント方式
や路上方式等で使用することによつて、再生アス
フアルト混合物ができる。
尚、必要に応じて剥離防止剤等を加えてもよ
い。
以下、本発明の実施例について詳細に説明す
る。
先ず、第1実施例に於ては、温度140〜160℃に
加熱溶融した石油系軟化剤100重量部に対してエ
チレン・エチルアクリレート樹脂を40重量部加
え、均一になるまで撹拌、溶解させた後、クロロ
ブレンゴムラテツクスを固形分に換算して10重量
部を加え撹拌し水分を除去し、均一になるまで撹
拌、溶解させることによつて、本発明に係る舗装
用再生添加組成物を得る。
この様な本発明は、廃材アスフアルト混合物よ
り抽出した老化アスフアルト100重量部に対して
本発明の舗装用再生添加組成物を13重量部添加し
て混合すると、下記の表−1に示す性状を得る。
尚、表−1の比較例は、廃材アスフアルト混合
物より抽出した老化アスフアルト100重量部に対
して鉱物油系芳香族油を15重量部添加して混合し
たものである。
第2実施例に於ては、温度140〜160℃に加熱溶
融した石油系軟化剤100重量部に対してエチレ
ン・エチルアクリレート樹脂30重量部を加え、均
一になるまで撹拌、溶解させた後、スチレン・イ
ソプレン共重合体ゴムラテツクス(固形分45%の
もので固形分中にイソプレン70%を含有するも
の)を固形分に換算して20重量部加え撹拌し水分
を除去し、均一になるまで撹拌、溶解させること
によつて、本発明に係る舗装用再生添加組成物を
得る。
この様な本発明は、廃材アスフアルト混合物よ
り抽出した老化アスフアルト100重量部に対して
本発明の舗装用再生添加組成物を10重量部添加し
て混合すると、下記の表−1に示す性状が得られ
る。
第3実施例に於ては、温度140〜160℃に加熱溶
融した石油系軟化剤100重量部に対してエチレ
ン・エチルアクリレート樹脂を30重量部加え、均
一になるまで撹拌、溶解させた後、スチレン・ブ
タジエン共重合体ゴムラテツクスを固形分に換算
して16重量部加え撹拌し水分を除去し、均一にな
るまで撹拌、溶解させることによつて、本発明の
舗装用再生添加組成物が得られる。
この様な本発明は、廃材アスフアルト混合物よ
り抽出した老化アスフアルト100重量部に対して
本発明の舗装用再生添加組成物を15重量部添加し
て混合すると、下記の表−1に示す性状が得られ
る。
The present invention relates to a method for producing a recycled additive composition for pavement of recycled asphalt mixtures intended for high-grade pavement, simple pavement, bridge surface pavement, airport pavement, etc. In recent years, recycling of aged or unnecessary asphalt mixtures has been reconsidered due to the trend toward resource and energy conservation. Recycling for asphalt mixtures can be broadly divided into central plant methods and on-road methods. The central plant method is a method of recycling in a special or conventional type of plant, in which waste materials are collected in a stockyard, then loosened and classified by crushing or thermal crushing in a crushing facility, and then recycled into new aggregate, straight asphalt, etc. Add and mix supplementary materials such as or regeneration additives. In addition, in the on-site method, part or all of the existing asphalt mixture is cut at the site, and supplementary materials such as aggregate, straight asphalt, and recycled additives are added to the cutting waste and mixed. Then, it is leveled and compacted. The reason for adding straight asphalt, recycled additives, etc. in this way is that the maltene fraction (n-pentane soluble polar fraction, aromatic Asphaltene (referring to the fraction insoluble in n-pentane) is oxidized or polymerized and becomes asphaltene (referring to the n-pentane-insoluble fraction), which has a relatively chemical composition compared to the original straight asphalt. This is because the maltene fraction is insufficient, and therefore, as for the physical properties of this asphalt, increases in penetration, elongation, and softening point are observed compared to the original straight asphalt. However, in order to regenerate an aged asphalt mixture with such physical properties, if a low viscosity regeneration additive mainly composed of maltene fraction is added in the central plant method or on-the-road method, it will cause a decrease in the quality of the asphalt mixture compared to a new asphalt mixture. As a result, flow deformation phenomena are more likely to occur at high temperatures, and wear phenomena are more likely to occur at low temperatures. Furthermore, when straight asphalt is added to regenerate an aged asphalt mixture, it is necessary to add a large amount to restore the physical properties of the original straight asphalt, and as a result, asphalt in the recycled asphalt mixture becomes excessive. There is a drawback that flashing and flow phenomena are more likely to occur as the temperature increases. Therefore, when a recycled asphalt mixture containing straight asphalt or recycled additives is used as a pavement asphalt mixture,
Compared to general asphalt mixtures, when subjected to repeated traffic such as vehicles, flow deformation phenomena and abrasion phenomena are more likely to occur on the road surface, making it difficult to maintain a flat road surface condition for a long time. The present invention has been made to solve the above-mentioned drawbacks, and its purpose is to provide a recycled asphalt mixture with durability and flow resistance while being usable in a wide range of applications regardless of the degree of aging of the waste material. An object of the present invention is to provide a pavement recycling additive composition that can be used as a pavement. In order to achieve the above object, the present invention has developed an ethylene-ethyl acrylate copolymer (hereinafter referred to as EEA).
It is called. ) The ratio of rubber to 100 parts by weight is 20 to 100 parts by weight, and the total amount of both is 100 parts by weight of petroleum-based softener.
It is characterized in that the amount of the additive is 1 to 30 parts by weight. The present invention will be explained below.
It consists of the following three components: petroleum softener, EEA, and rubber. 1 Petroleum-based softeners are distilled oils obtained by separating low-boiling fractions from crude oil using an atmospheric distillation column, and distilling the heavy crude oil remaining at the bottom of the atmospheric distillation column under reduced pressure. They are classified into paraffinic softeners, naphthenic softeners, and aromatic softeners depending on the type, treatment process, and formulation, but all of these can be used in the present invention. Such a petroleum-based softener has a chemical composition close to that of the maltene fraction in asphalt. 2 EEA contains 5 to 50% by weight of ethyl acrylate and has a melt index of
A value between 0.5 and 50 is good. In addition, in EEA, if the content of ethyl acrylate is less than 51% by weight, the solubility in aged asphalt is poor,
Moreover, the properties at low temperatures are also inferior. Furthermore, if the ethyl acrylate content is 50% by weight or more, the solubility in aged asphalt is good, but there are drawbacks such as poor properties at high temperatures. 3. The rubber used may be natural rubber or various synthetic rubbers, and may be used alone or in combination of two or more. Its properties are solid or latex type, and rubber with a Mooney viscosity of about 10 to 100 will give good results. As the synthetic rubber, chloroprene rubber, styrene, isoprene copolymer rubber, polyisoprene rubber, polybutadiene rubber, styrene-butadiene copolymer rubber, etc. are used. The composition of the present invention is usually obtained as follows. First, rubber is 20 to 100 parts by weight for 100 parts by weight of EEA.
EEA, rubber, and petroleum softener are each prepared in a ratio of parts by weight, and the total amount of both is 1 to 30 parts by weight per 100 parts by weight of petroleum softener. Then, a predetermined amount of rubber, such as rubber latex or solid rubber, is gradually added to a predetermined amount of petroleum-based softener heated and melted at a temperature of 90-160°C, and heated while stirring to remove water and make rubber-containing petroleum softener. Use as a softener. Furthermore, the above rubber-containing petroleum softener is heated to a temperature of 120~
The mixture is heated to 170°C, and a predetermined amount of EEA is added and dissolved to obtain the recycled pavement additive composition of the present invention. By using the present invention thus obtained in a central plant system, on-road system, etc., a recycled asphalt mixture can be produced. Incidentally, an anti-peeling agent or the like may be added if necessary. Examples of the present invention will be described in detail below. First, in the first example, 40 parts by weight of ethylene ethyl acrylate resin was added to 100 parts by weight of petroleum softener heated and melted at a temperature of 140 to 160°C, and the mixture was stirred and dissolved until uniform. After that, add 10 parts by weight of chloroprene rubber latex in terms of solid content, stir, remove moisture, and stir until homogeneous to dissolve, thereby preparing the recycled pavement additive composition according to the present invention. obtain. According to the present invention, when 13 parts by weight of the reclaimed pavement additive composition of the present invention is added to 100 parts by weight of aged asphalt extracted from a waste asphalt mixture and mixed, the properties shown in Table 1 below are obtained. . In the comparative example shown in Table 1, 15 parts by weight of mineral oil-based aromatic oil was added and mixed with 100 parts by weight of aged asphalt extracted from a waste asphalt mixture. In the second example, 30 parts by weight of ethylene ethyl acrylate resin was added to 100 parts by weight of petroleum softener heated and melted at a temperature of 140 to 160°C, stirred and dissolved until uniform, and then Add 20 parts by weight of styrene-isoprene copolymer rubber latex (45% solids, containing 70% isoprene in the solids), stir to remove moisture, and stir until uniform. By dissolving the mixture, a reclaimed pavement additive composition according to the present invention is obtained. According to the present invention, when 10 parts by weight of the recycled pavement additive composition of the present invention is added and mixed with 100 parts by weight of aged asphalt extracted from a waste asphalt mixture, the properties shown in Table 1 below are obtained. It will be done. In the third example, 30 parts by weight of ethylene ethyl acrylate resin was added to 100 parts by weight of petroleum softener heated and melted at a temperature of 140 to 160°C, stirred and dissolved until uniform, and then The reclaimed pavement additive composition of the present invention is obtained by adding 16 parts by weight of styrene-butadiene copolymer rubber latex in terms of solid content, stirring to remove moisture, and stirring and dissolving until uniform. . According to the present invention, when 15 parts by weight of the recycled pavement additive composition of the present invention is added and mixed with 100 parts by weight of aged asphalt extracted from a waste asphalt mixture, the properties shown in Table 1 below are obtained. It will be done.
【表】
上記した如く、本発明に係る舗装用再生添加組
成物によれば、EEA100重量部に対してゴム20〜
100重量部となる比率で両者の合計量が石油系軟
化剤100重量部に対して1〜30重量部にしたこと
によつて、本発明を再生添加剤として廃材に用い
ると、廃材にマルテン留分が充分に加えられ、老
化したアスフアルトをもとの化学組成成分に近い
状態に復元すると共に、EEAとゴムを添加する
ことにより耐久性粘度の増加及び粘着性に富む様
になる為、流動、脆化及び摩耗に対して極めて大
きな抵抗力を示し、安全でかつ円滑な交通路を形
成することができる効果がある。
更に、廃材に対して多量の本発明を必要としな
い為、廃材の再生率がよいという有意義な効果が
ある。[Table] As mentioned above, according to the recycled pavement additive composition of the present invention, 20 to 20 parts of rubber per 100 parts by weight of EEA
By setting the total amount of both to 1 to 30 parts by weight per 100 parts by weight of the petroleum-based softener at a ratio of 100 parts by weight, when the present invention is used as a recycling additive for waste wood, malten residue is added to the waste wood. The addition of EEA and rubber restores the aged asphalt to a state close to its original chemical composition, and the addition of EEA and rubber increases the durable viscosity and makes it highly adhesive, resulting in fluidity and It exhibits extremely high resistance to embrittlement and abrasion, and is effective in forming safe and smooth traffic roads. Furthermore, since a large amount of the present invention is not required for the waste material, there is a significant effect that the recycling rate of the waste material is high.
Claims (1)
重量部に対してゴムが20から100重量部となる比
率で用意し、パラフイン系軟化剤、ナフテン系軟
化剤及び芳香族系軟化剤のうちの一種もしくは二
種以上を混合した石油系軟化剤を90℃から160℃
に加熱して溶融し、この石油系軟化剤100重量部
に対してゴムを上記の割合で徐々に添加して加熱
しながら撹拌混合し、このゴム入りの石油系軟化
剤を120℃から170℃に加熱し、これに上記の割合
でエチレン・エチルアクリレート共重合物を加え
て溶解させ、全体として石油系軟化剤100重量部
に対してエチレン・エチルアクリレート共重合物
とゴムの合計量が1から30重量部となるようにし
た舗装用再生添加組成物の製造方法。1 Ethylene/ethyl acrylate copolymer 100
A petroleum-based softener prepared at a ratio of 20 to 100 parts by weight of rubber and mixed with one or more of paraffinic softeners, naphthenic softeners, and aromatic softeners. 90℃ to 160℃
Gradually add rubber at the above ratio to 100 parts by weight of this petroleum softener, stir and mix while heating, and heat the petroleum softener containing rubber to 120 to 170 °C. , and add and dissolve the ethylene/ethyl acrylate copolymer in the above ratio, so that the total amount of ethylene/ethyl acrylate copolymer and rubber is from 1 to 100 parts by weight of the petroleum softener. A method for producing a recycled pavement additive composition in an amount of 30 parts by weight.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6885582A JPS58204205A (en) | 1982-04-26 | 1982-04-26 | Regeneration and additive composition for pavement |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6885582A JPS58204205A (en) | 1982-04-26 | 1982-04-26 | Regeneration and additive composition for pavement |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS58204205A JPS58204205A (en) | 1983-11-28 |
JPS6322232B2 true JPS6322232B2 (en) | 1988-05-11 |
Family
ID=13385698
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6885582A Granted JPS58204205A (en) | 1982-04-26 | 1982-04-26 | Regeneration and additive composition for pavement |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS58204205A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60199060A (en) * | 1984-03-23 | 1985-10-08 | Toa Doro Kogyo Kk | Emulsion-type modified reclaimed additive composition |
JPS60199059A (en) * | 1984-03-23 | 1985-10-08 | Toa Doro Kogyo Kk | Emulsion-type modified reclaimed additive composition |
JPS60199058A (en) * | 1984-03-23 | 1985-10-08 | Toa Doro Kogyo Kk | Emulsion-type modified reclaimed additive composition |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51125412A (en) * | 1975-01-19 | 1976-11-01 | Inst Technologii Nafty | Composite of asphalt |
JPS5397230A (en) * | 1977-02-04 | 1978-08-25 | Ube Industries | Method of covering tile |
JPS553492A (en) * | 1978-06-21 | 1980-01-11 | Elf Union | Manufacture of mobile bitumennpolymer composition |
JPS56151760A (en) * | 1980-03-31 | 1981-11-24 | Shell Int Research | Plastic bitumen composition and product containing it |
-
1982
- 1982-04-26 JP JP6885582A patent/JPS58204205A/en active Granted
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51125412A (en) * | 1975-01-19 | 1976-11-01 | Inst Technologii Nafty | Composite of asphalt |
JPS5397230A (en) * | 1977-02-04 | 1978-08-25 | Ube Industries | Method of covering tile |
JPS553492A (en) * | 1978-06-21 | 1980-01-11 | Elf Union | Manufacture of mobile bitumennpolymer composition |
JPS56151760A (en) * | 1980-03-31 | 1981-11-24 | Shell Int Research | Plastic bitumen composition and product containing it |
Also Published As
Publication number | Publication date |
---|---|
JPS58204205A (en) | 1983-11-28 |
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